package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import javax.security.auth.login.LoginException;
import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.Map;

@Service
public class UserServiceimpl implements UserService {

    //微信服务接口地址
    public static final String weixinlogin ="https://api.weixin.qq.com/sns/jscode2session";

    @Autowired
    private WeChatProperties weChatProperties;
    @Autowired
    private UserMapper userMapper;


    @Override
    public User wxLogin(UserLoginDTO userLoginDTO) {
        //获得当前的openid
        String openid = getString(userLoginDTO);

        if(openid==null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }

        User user=userMapper.getbyopenid(openid);

        if(user==null){
             user = User.builder().openid(openid).createTime(LocalDateTime.now()).build();
             userMapper.insert(user);

        }



        return user;
    }

    private String getString(UserLoginDTO userLoginDTO) {
        Map<String, String> map = new HashMap<String, String>();
        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code", userLoginDTO.getCode());
        map.put("grant_type","authorization_code");
        String json = HttpClientUtil.doGet(weixinlogin, map);
        JSONObject jsonObject = JSON.parseObject(json);
        String openid = jsonObject.getString("openid");
        return openid;
    }
}
